Sierra Bradway’s father was killed four years ago in the line of duty. On Saturday, she found a special way to make him a part of a big milestone when she took her prom photos at his gravesite in Indianapolis, Indiana.

The 17-year-old high schooler was only expecting to have her date, Brock, and a photographer there, but when she stepped out of her SUV at Indianapolis’s Crown Hill Cemetery, she was greeted by numerous police officers from the Indianapolis Police Department.

Officer Rod Bradway was killed in September 2013, after he forced his way into an apartment where a woman who had been held at gunpoint for three hours was screaming for help, according to the The Indy Star.